<p>take lots of vitamins and get lots of sleep! mono weakens your immune system (since your body is trying to fight the virus), making it more likely that secondary infections will occur. Also, don’t go back to running around too soon- your daughter might think that shes ready to go back to the gym/athletics (non contact, obviously), but she might not be. I had mono this fall and only felt sick for about 10 days or so, but it was longer until I totally felt myself again.</p>